Beyond visual line of sight (BVLOS) tracking, command, and control is required search and rescue missions and many other applications of unmanned aerial vehicles (UAVs).
SPL and NVI system support UAVs controlled by Copter and Plane profiles of ArduPilot autopilot. Support for DJI Matrice drones is coming soon.
SPL is an open-source global satellite telemetry system for autonomous vehicles that uses Iridium Short Burst Data (ISBD).
Satellite communication is relatively expensive, has low bandwidth, and varying signal quality. SPL and NVI telemetry systems use data filtering, compression, caching and other means to minimize and optimize utilization of the communication channel.